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TECHNICAL PAPERS: Gas Turbines: Electric Power

Design Study of Part-Flow Evaporative Gas Turbine Cycles: Performance and Equipment Sizing—Part I: Aeroderivative Core

[+] Author and Article Information
N. D. Ågren, M. O. J. Westermark

Department of Chemical Engineering/Energy Processes, Royal Institute of Technology, SE-100 44 Stockholm, Sweden

J. Eng. Gas Turbines Power 125(1), 201-215 (Dec 27, 2002) (15 pages) doi:10.1115/1.1476924 History: Received December 01, 2000; Revised March 01, 2001; Online December 27, 2002
Copyright © 2003 by ASME
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References

Rao, A. D., 1989, “Process for Producing Power,” U.S. Patent No. 4,829,763, May 16.
Nilsson, P. A., ed., 1996, “EvGT—Evaporative Gas Turbine—Block 3,” Technical Report, Lund Institute of Technology, Department of Heat and Power Technology, Lund, Sweden.
Ågren, N., Westermark, M., Bartlett, M., and Lindquist, T., 2000, “First Experiments On An Evaporative Gas Turbine Pilot Power Plant: Water Circuit Chemistry and Humidification Evaluation,” ASME Paper No. 2000-GT-168.
Lindquist, T., Rosén, P., and Torisson, T., 2000, “Evaporative Gas Turbine Cycle—A Description of a Pilot Plant and Operating Experience,” accepted for 2000 ASME International Mechanical Engineering Congress and Exposition, Nov. 5–10, Orlando, FL.
Lindquist, T., Rosén, P., and Torisson, T., 2000, “Theoretical and Experimental Evaluation of the EvGT-Process,” accepted for 2000 ASME International Mechanical Engineering Congress and Exposition, Nov. 5–10, Orlando, FL.
Ågren, N., Cavani, A., and Westermark, M., 1997, “New Humidification Concept for Evaporative Gas Turbine Cycles Applied to a Modern Aeroderivative Gas Turbine,” Proceedings, ASME Advanced Energy Systems Division, M. L. Ramalingam et al., eds., ASME, New York, 37 , pp. 223–230.
Ågren, N., Cavani, A., and Westermark, M., 1997, “New Humidification Concept in Evaporative Gas Turbine Cycles,” Proceedings of the TAIES’97, Thermodynamic Analysis and Improvement of Energy Systems, Chinese Society of Engineering Thermophysics, Beijing, China, June 10–13, Beijing World Publishing Corp., Beijing, China.
Nakamura, H., Takahashi, T., Narazaki, N., Yamamoto, F., Sayama, N., 1985, “Regenerative Gas Turbine Cycle,” U.S. Patent 4,537,023, Aug. 27.
Nakamura, H., Takahashi, T., Narazaki, N., Yamamoto, F., and Sayama, N., 1987, “Regenerative Gas Turbine Cycle,” U.S. Patent 4,653,268, Mar. 31.
Westermark, M., 1996, “Method and Device for Generation of Mechanical Work and, if Desired, Heat in an Evaporative Gas Turbine Process,” International Patent Application No. PCT/SE96/00936.
Mickley,  H. S., 1949, “Design of Forced Draught Air Conditioning Equipment,” Chem. Eng. Prog., 45, pp. 739ff.
Perry’s Chemical Engineers’ Handbook, 7th Ed., 1997, McGraw-Hill, New York.
Ågren, N., 2000, “Advanced Gas Turbine Cycles With Water-Air Mixtures as Working Fluid,” doctoral thesis, Royal Institute of Technology, Stockholm, Sweden.
Strigle, R., 1994, Packed Tower Design and Applications, Random and Structured Packings, 2nd Ed., Gulf Publishing Corp., Houston, pp. 150–159.
Hyland,  W., and Wexler,  A., 1983, “Formulations for the Thermodynamic Properties of Dry Air and Saturated Air-Water Mixtures,” ASHRAE Trans., 89(2A), pp. 520–535.
Enick,  R. M., Klara,  S. M., and Marano,  J. J., 1995, “A Robust Algorithm for High-pressure Gas Humidification,” Comput. Chem. Eng., 19, pp. 1051–1061.
Wark, K., 1995, Advanced Thermodynamics for Engineers, McGraw-Hill, Singapore.

Figures

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Operating line and saturation curve for an air humidifier
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Humidifier operating lines at full and part flow
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Data flows between the used software
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Tower calculation segments
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Intalox© structured metal packing 2T (Norton Chemical Proc. Prod. Corp.)
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Conversion from β to fraction of compressor intake air used in the humidifier circuit
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Electric efficiency and total heat transfer area versus β
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Distribution of heat transfer surface versus β
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Column water outlet temperature and water flow versus β
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Operating lines for all part flow cases
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NTU and column shell height versus β
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Humidification column dimensions
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Flue gas heat recovery diagram for β=1
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Flue gas heat recovery diagram for β=0.2
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Temperature and humidity of flue gas at FWH exit versus β
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End condensation temperature versus β
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Graphical representation of number of transfer units for β=0.2
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Example of calculated number of transfer units as a function of minimum adiabatic temperature difference in a column for β=0.2
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Flowsheet of the part-flow process

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